天山南部早三叠世植物化石初步研究  

A PRELIMINARY STUDY OF EARLY TRIASSIC PLANTS FROM SOUTH TIANSHAN MOUNTAINS

作　　者：吴舜卿[1] 周汉忠[1] 

机构地区：[1]中国科学院南京地质古生物研究所

出　　处：《古生物学报》1990年第4期447-459,521-524,共13页Acta Palaeontologica Sinica

摘　　要：在我国,有关早三叠世植物化石的正式报道还是近十年的事,本文是新疆早三叠世植物化石的首次报道,也是继山西沁水盆地(王立新、解志民和王自强,1978)及海南岛九曲江(周志炎、厉宝贤,1979)之后有关我国早三叠世植物化石的又一个记录。标本发现于西部边陲,由于地理位置及生态环境的差异,组成成分与前两个产地均不相同,植物种类丰富,有苔藓类?、有节类、真蕨类、种子蕨类、苏铁类、银杏类及松柏类等。既包括冈瓦那达穆达和潘切特植物群的分子,也含有与中亚马迪根植物群相同或相似的属种,西欧斑砂统和壳灰统及粘土煤层和芦草砂岩的一些属种,在这里也有产出。另外,在这个植物群中还见到我国南北晚三叠世植物群的一些属种。因此,新疆南部植物化石的发现,不仅为我国早三叠世植物群增添了新的内容。In China, the Lower Triassic plants are restricted in distribution. The present paper is the first record on the Lower Triassic plants in Xinjiang, and the material under study was collected from the lower part of the Ehuobulake Formation in the Kuqa district by the writers and others in 1979—1984. The Ehuobulake Formation overlies unconformably the carboniferous limestone and underlies the Karamay, Huangshanjie and Tariqike Formations of the Middle Triassic-Early Jurassic. The fossil plants are abundant in individual, comprising 23 species belonging to 19 genera (including 3 new species), namely, Thallites minimus sp. nov., Schizoneura gondwanensis Festmantel, Neocalamites merianii (Brongniart) Halle, N. sp. 1, N. sp. 2, N. ?sp., Annulariopsis? sp., Taeniacradopsis? sp., Cladophlebis cf. raciborskii Zeiller, Caulopteris? sp., Compsopteris zhonghuaensis Yang, Lepidopteris? sp., Scytophyllum kuqaense sp. nov., Drepanozamites schizophyllus sp. nov., Sinozamites sp., cf. Uralophyllum? radczenkoii (Sixtel) Dobruskina, Pursongia? sp., Ginkgoites sp., G.? sp., Glossophyllum? sp., Czekanowskia? sp., Swedenborgia? sp. and Rhabdotocaulon sp. These fossil plants appear to be complex in composition, containing: 1). elements common to those from the Damodar and Panchet floras of the Gondwana land, such as Schizoneura gondwanensis; 2). species comparable with those of the Madyigen flora in Central Asia, such as Scytophyllum kuqaense sp. nov., cf. Uralophyllum? radczenkoi, Pursongia? sp. etc.; 3). species comparable with Equisetum mougeotii Brongn. sp. of Buntsandstein and Muschelkalk in Commern, such as Neocalamites? sp.; 4). species of Early Keuper and early Middle Keuper in Germany, such as Neocalamites meriani; and 5). genera and species identical, with or similar to those from the Late Triassic of South or North China, such as Taeniocradopsis, Cladophlebis cf. raciborskii, Drepanozam#es schizophyllus sp. nov., Sinozamites, Glossophyllum?, Czekanowskia?, Swedenborgia?, etc., but with none of Late Permian and La

关 键 词：三叠世 植物化石 天山 

分 类 号：Q914.651[天文地球—古生物学与地层学]